【T4】 A. LIKE B. THROUGH C. CONSISTS OF A. WHAT SUBSTANCES YOUR TAP WATER【T1】______ B. WHILE THE WATER STREAMS【T2】______ PIPELINES C.【T3】______ EVERY OTHER SUBSTANCE DRINKING WATER,【T4】______ , CONTAINS SMALL AMOUNTS OF BACTERIA. MOST OF THESE BACTERIA ARE COMMON ONES AND THEY ARE GENERALLY NOT HARMFUL. CHLORINE(氯)IS USUALLY ADDED TO DRINKING WATER TO PREVENT BACTERIAL GROWTH【T5】______ THIS IS WHY DRINKING WATER ALSO CONTAINS SMALL AMOUNT OF CHLORIN E. WATER MOSTLY CONSISTS OF MINERALS AND OTHER INORGANIC COMPOUNDS, SUCH AS CALCIU M. IF YOU WANT TO FIND OUT【T6】______ AND WHETHER IT IS TOTALLY SAFE TO DRINK, YOU CAN HAVE A SPECIALIZED AGENCY CHECK IT OUT FOR YOU.